Usage
import DateTime;
Details createDate createDateTime createDuration createInterval createTime dateRangeByDay daysDiff daysInInterval decrementDays decrementHours decrementMilliseconds decrementMinutes decrementMonths decrementSeconds decrementYears Duration incrementDays incrementHours incrementMilliseconds incrementMinutes incrementMonths incrementSeconds incrementYears interval joinDateAndTime now parseDate parseDateInLocale parseDateTime parseDateTimeInLocale parseTime parseTimeInLocale printDate printDateInLocale printDateTime printDateTimeInLocale printTime printTimeInLocale splitDateTime